Sawan Somavar, or Mondays in the month of Sawan or Shrawan (July – August), is dedicated to Lord Shiva. Shrawan month is one of the holiest months in traditional North Indian Hindu calendar and is dedicated to the worship of Shiva. Sawan Mahina Somvar Vrat, or Shrawan Somavara Upvaas, is observed on Mondays. Fasting is observed from sunrise to sunset on all Mondays in the month.

In the Sawan month, Shivalingam is bathed with holy water from River Ganga and devotees travel hundreds of kilometers to collect Gangajal.

Fasting on Mondays dedicated to Lord Shiva is observed from sunrise to sunset.

Married women observe Sawan Mahina Somvar Vrat for a happy and long married life.